CVE-2006-7128 in JAF CMS
Summary
by MITRE
PHP remote file inclusion vulnerability in forum/forum.php JAF CMS 4.0 RC1 allows remote attackers to execute arbitrary PHP code via a URL in the website parameter.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 07/25/2024
The vulnerability identified as CVE-2006-7128 represents a critical remote file inclusion flaw within the JAF CMS 4.0 RC1 forum component, specifically in the forum/forum.php script. This weakness stems from insufficient input validation and sanitization mechanisms that fail to properly restrict user-supplied data from being directly incorporated into file inclusion operations. The vulnerability manifests when the application accepts a website parameter that is subsequently used in a require or include statement without adequate security controls, creating an avenue for malicious actors to inject and execute arbitrary PHP code on the target system.
The technical nature of this vulnerability aligns with CWE-88, which describes improper neutralization of special elements used in an expression, and CWE-94, which covers improper control of generation of code. The flaw operates by allowing remote attackers to manipulate the website parameter to point to malicious remote resources, enabling the execution of code from external servers. This type of vulnerability falls under the ATT&CK technique T1190 - Exploit Public-Facing Application, where adversaries target web applications with insufficient input validation to gain unauthorized code execution capabilities. The vulnerability's severity is amplified by the fact that it operates entirely through HTTP requests without requiring authentication or prior access to the system.
The operational impact of CVE-2006-7128 is substantial and multifaceted, potentially allowing attackers to execute arbitrary commands on the affected web server, install backdoors, steal sensitive data, or use the compromised system as a launching point for further attacks within the network. Since the vulnerability affects a core forum component of the JAF CMS, successful exploitation could compromise all forum-related functionality and potentially provide access to underlying system resources. The remote nature of the attack means that threat actors can exploit this vulnerability from anywhere on the internet, making it particularly dangerous for publicly accessible web applications. Additionally, the vulnerability could be leveraged in automated scanning campaigns, increasing the likelihood of successful exploitation across multiple targets.
Mitigation strategies for this vulnerability should focus on immediate input validation and sanitization measures to prevent user-supplied data from being used in file inclusion operations. The recommended approach involves implementing strict parameter validation that rejects any input containing URLs or external references, while also employing proper input sanitization techniques to remove or encode potentially dangerous characters. Organizations should implement a whitelist-based approach for all file inclusion operations, ensuring that only pre-approved local files can be accessed. Additionally, the use of secure coding practices such as disabling remote file inclusion features in PHP configurations, implementing proper error handling, and conducting regular security code reviews can significantly reduce the risk of exploitation. The vulnerability also highlights the importance of keeping CMS platforms updated, as newer versions of JAF CMS would have addressed this specific flaw through improved input validation and security controls.